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Digital Floor Pumps - Why?

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Old 08-17-13 | 09:04 PM
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Digital Floor Pumps - Why?

Do you use these? Why? This may be hypocritical given my allegiance to electronic shifting...but I don't get the point?

Lezyne has some coming out...but I guess there are many others on the market? How did I miss this trend?

https://www.bikeradar.com/news/articl...or-2014-37651/

https://www.lezyne.com/de/products/fl...-digital-drive

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Old 08-17-13 | 09:12 PM
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Greater accuracy and consistency.

You presumably missed it, because you don't need it. Thus, there's no need for you to worry about it, as they will not replace analog any time soon (if ever).
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Old 08-17-13 | 09:23 PM
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Well I for one, absolutely need my psi set right down to the decimal point for maximum performance...... ( right up till I pop the pump off the stem anyway)
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Old 08-18-13 | 04:54 AM
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They had digital displays in cars, too, back in the eighties.
An analog measuring device is simpler and thus less prone to inaccuracy, I believe ... unless you go waaay expensive.
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Old 08-18-13 | 06:58 AM
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Originally Posted by Bacciagalupe
Greater accuracy and consistency.
A digital readout does not make it accurate. But that may be their marketing hype.

Anyway, probably collusion with battery makers. As if we need one more thing to remember to keep filled with batteries.
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Old 08-18-13 | 07:02 AM
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The reason they exist is because the makers think they will sell more pumps. If they do, they will keep making them. If they don't sell well, eventually they will go away.
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Old 08-18-13 | 07:44 AM
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We are probably reaching a tipping point where electronic pressure transducers with digital readouts are cheaper to manufacture than mechanical analog. Expect to see more of them.
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Old 08-18-13 | 12:39 PM
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Originally Posted by CommuteCommando
We are probably reaching a tipping point where electronic pressure transducers with digital readouts are cheaper to manufacture than mechanical analog. Expect to see more of them.
Yeah. I guess I wouldn't mind if it was powered by stroking the pump rather than a battery that'd go bad.
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Old 08-18-13 | 12:46 PM
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Originally Posted by AdelaaR
They had digital displays in cars, too, back in the eighties.
An analog measuring device is simpler and thus less prone to inaccuracy, I believe ... unless you go waaay expensive.
I drive a Prius. It has digital display.
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Old 08-18-13 | 12:57 PM
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Originally Posted by AdelaaR
An analog measuring device is simpler and thus less prone to inaccuracy, I believe ... unless you go waaay expensive.
If only reality worked that way.

Ever compared a set of rulers, the simplest analog measuring device of all?
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Old 08-18-13 | 01:54 PM
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Originally Posted by Nerull
...Ever compared a set of rulers, the simplest analog measuring device of all?
Yes! I have a number of 18" steel machinist's rules and they are indistinguishable under a 10x magnifier. For the heck of it I just compared a 20' Stanley steel tape measure to a 100' Lufkin steel tape measure and they're within a 1/32" over 20' or about 0.013%.

Electronic/digital of course will depend on the precision and reproducibility of the transducer over time and temperature and the quality of the stored calibration and temp compensation...and having a non-dead battery.

The thing I don't like about a purely numeric display is it's difficult to see rates of change and how close your getting as the pressure is changing. Many types of electronic displays employ synthesized analog type indicators (dials with needles, or bar-graphs) to make that easier.

Last edited by Looigi; 08-18-13 at 01:58 PM.
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Old 08-19-13 | 12:33 AM
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I have a digital display. I remember starting a thread about pumps in another forum. But that was mostly misunderstood and taken to serious. I have a very much larger display on my pump and it is much higher up.
It is very easy to overlook and also to tune the pressure. If one like analog display, fine! If one want digital dito, it must be considered good that we can get it!?
I never thought about the fact that it might be a hand in hand with electronic gearing, but you have a good point.
I ride mechanical though.



Originally Posted by gc3
Do you use these? Why? This may be hypocritical given my allegiance to electronic shifting...but I don't get the point?

Lezyne has some coming out...but I guess there are many others on the market? How did I miss this trend?

https://www.bikeradar.com/news/articl...or-2014-37651/

https://www.lezyne.com/de/products/fl...-digital-drive

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Old 08-19-13 | 12:39 AM
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Originally Posted by Bah Humbug
I drive a Prius. It has digital display.
Sure, they still exist.
But they didn't become the norm.
Most cars still use simple analog needle displays, like mine.
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Old 08-19-13 | 12:56 AM
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None of you MTB on a tubeless set up or own a fatbike do you? It can be really tricky to impossible to measure the low pressures in these applications with an analogue gauge on a standard pump.
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Old 08-19-13 | 07:26 AM
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Originally Posted by Looigi
Yeah. I guess I wouldn't mind if it was powered by stroking the pump rather than a battery that'd go bad.
yeah. the thing with digital displays is that the good ones work well, but YGWYPF. I had a cheap $15 Wally bathroom scale that you would step on five times and get five different weights with a precision of around five pounds. I have a little 1kg food scale that I payed $65 from Amazon, and it consistently weighs to 0.1g +- 0.1g. My new $35 Health-0-Meter bathroom scale from Amazon has a precision of +- 0.2lb, and gives the same reading every time.
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Old 08-19-13 | 07:43 AM
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We have one of these in our bathroom: https://www.quicksupply.net/p-2959-he...c=Shoppingcom&
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Old 08-19-13 | 08:39 AM
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Originally Posted by AdelaaR
Sure, they still exist.
But they didn't become the norm.
Most cars still use simple analog needle displays, like mine.
The last two cars we bought have analog and digital. I guess their philosophy was why not have both!
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Old 08-19-13 | 08:42 AM
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Originally Posted by CommuteCommando
yeah. the thing with digital displays is that the good ones work well, but YGWYPF. I had a cheap $15 Wally bathroom scale that you would step on five times and get five different weights with a precision of around five pounds. I have a little 1kg food scale that I payed $65 from Amazon, and it consistently weighs to 0.1g +- 0.1g. My new $35 Health-0-Meter bathroom scale from Amazon has a precision of +- 0.2lb, and gives the same reading every time.
How would you know if you lost/gained weight if it reads the same every time?
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Old 08-19-13 | 08:56 AM
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Originally Posted by AdelaaR
Sure, they still exist.
But they didn't become the norm.
Most cars still use simple analog needle displays, like mine.
Many of your 'analog' displays are not mechanical meters.
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Old 08-19-13 | 09:15 AM
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Originally Posted by WhyFi
Many of your 'analog' displays are not mechanical meters.
The entire gauge cluster on most newer cars is 100% digital. Any mechanical gauges are just a display for the actual CAN-BUS data.
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